<div style="position: relative; ">
    <div style="top:350px;left:500px;position: absolute;">
        <img src="images/404.png" /> </div>
    <img src="images/404.jpg" style="max-width:100%;overflow:hidden;" />
</div>

<script>
    var elem = document.getElementsByClassName('navbar');
    elem[0].parentNode.removeChild(elem[0]);
</script>